Magnesia interface nanolayer modification of Pt/Ta3N5 for promoted photocatalytic hydrogen production under visible light irradiation
文献类型：期刊论文
| 作者 | Chen, Shanshan1; Qi, Yu1,3; Ding, Qian1,3; Li, Zheng1,3; Cui, Junyan1,2; Zhang, Fuxiang1; Li, Can1 |
| 刊名 | JOURNAL OF CATALYSIS
 |
| 出版日期 | 2016-07-01 |
| 卷号 | 339页码:77-83 |
| 关键词 | Photocatalysis Water Splitting Ta3n5 Interface Modification Hydrogen |
| ISSN号 | 0021-9517 |
| DOI | 10.1016/j.jcat.2016.03.024 |
| 文献子类 | Article |
| 英文摘要 | Deposition of a co-catalyst is a general strategy for promoting the water splitting performance of semiconductor-based photocatalysts, but the interface barrier of the co-catalyst/semiconductor system often leads to unfavorable interfacial charge transfer and separation. In this work, the interface issue of the Pt/Ta3N5 proton reduction system was addressed via a magnesia interface nanolayer (MIN) modification strategy, and its effect on the structure and properties of both the Ta3N5 semiconductor and the Pt co-catalyst was investigated. UV-visible diffuse reflectance spectroscopy, field emission scanning electron microscopy, and high-resolution transmission electron microscopy characterizations indicate that the MIN can not only effectively passivate the Ta3N5 semiconductor, but also favor the deposition of Pt co-catalyst with small particle size and uniform dispersion, which can increase the catalytic active sites and enlarge the interfacial contact area between Ta3N5 and Pt. Time-resolved infrared spectroscopy further evidences that the promoted charge separation process is achieved by this magnesia interface engineering strategy. Based on our modification, the optimal H-2 evolution rate on the Pt/MgO(in)-Ta3N5 photocatalyst reaches 22.4 mu mnol h(-1), which is ca. 17 times that of pristine Pt/Ta3N5 photocatalyst. (C) 2016 Elsevier Inc. All rights reserved. |
| WOS关键词 | WATER OXIDATION ; H-2 EVOLUTION ; LAYER ; TAON ; SIZE ; NANOPARTICLES ; COCATALYSTS ; PHOTOANODES ; PERFORMANCE ; REDUCTION |
| WOS研究方向 | Chemistry ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000378453700010 |
| 出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/170526]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Zhang, Fuxiang; Li, Can |
| 作者单位 | 1.Chinese Acad Sci, Dalian Natl Lab Clean Energy, Dalian Inst Chem Phys, State Key Lab Catalysis,iChEM, Dalian 116023, Peoples R China 2.Jilin Univ, Coll Chem, Key Lab Surface & Interface Chem Jilin Prov, Changchun 130021, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Shanshan,Qi, Yu,Ding, Qian,et al. Magnesia interface nanolayer modification of Pt/Ta3N5 for promoted photocatalytic hydrogen production under visible light irradiation[J]. JOURNAL OF CATALYSIS,2016,339:77-83. |
| APA | Chen, Shanshan.,Qi, Yu.,Ding, Qian.,Li, Zheng.,Cui, Junyan.,...&Li, Can.(2016).Magnesia interface nanolayer modification of Pt/Ta3N5 for promoted photocatalytic hydrogen production under visible light irradiation.JOURNAL OF CATALYSIS,339,77-83. |
| MLA | Chen, Shanshan,et al."Magnesia interface nanolayer modification of Pt/Ta3N5 for promoted photocatalytic hydrogen production under visible light irradiation".JOURNAL OF CATALYSIS 339(2016):77-83. |
入库方式： OAI收割
来源：大连化学物理研究所
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